Dear Readers,

Month by month, our Weibold academy series dwells deeper into the world of tire recycling and highlights different sides of this business. In case you have missed our previous articles, you can find the links at the end of this post.

What we need to know about rubberized asphalt

Numerous researchers, environmentalists and industry experts have concluded some time ago that rubberized asphalt is an innovative and environment-friendly product, which can significantly improve quality of roads and reduce regular maintenance costs.

What also makes this type of paving outstanding is that it is made of waste tires. Crumb rubber, which is extracted from tires, is one of the key components that is used in production of rubberized asphalt. Sustainable nature of the product is obvious, as a huge number of tires can be taken out of the waste stream.

To produce rubberized asphalt, crumb rubber is introduced into special liquid blend, known as a binder, which is further dried and mixed with bitumen. Once this process is completed, the liquid is applied to the road.

Each lane-mile of rubberized pavement required approximately 1,500 tires, therefore it has a tremendously positive effect on the environment – tire stockpiles get more chances to be cleaned up. For instance, Arizona Department of Transportation (ADOT) needed some 90,000 waste tires to cover 60-mile highway that has six lanes. That was a great achievement, as it has resulted in stockpile clearance and prevented potential risks of fire and dissemination of diseases transmitted by mosquitos that normally breed at tire dumping sites.

One of the biggest advantages of rubberized asphalt – it can be cracking resistant both in cold and hot weather conditions, also when the surface will start to age. Road surfaces made from rubberized asphalt are very durable and can serve for over 10 years. Thus, the material can help save both time and money when the replacement of surface will be required.

Another significant benefit of rubberized asphalt is that only half to 1 inch of the product applied on the road surface can be enough to make road more smooth and comfortable for driving.

However, some organizations, such as ADOT, do mention that rubberized asphalt paving can sometimes be slightly problematic due to its sensitivity to temperature and it can be put down at a temperature of no less than 24 degrees Celcius (75 degrees Farenheit). Thus, it is possible to apply rubberized asphalt only during the springtime and in early autumn. Nevertheless, industry’s experts assure that this short-time inconvenience will pay off over time and will bring long-term advantages for every driver, the environment and the public.

Apart from being an amazing eco-friendly innovation and durable cost-efficient type of paving, rubberized asphalt has the capacity to reduce traffic noise by 4 decibels or even more.

Some evidences demonstrated that freeway surfaces with cement concrete pavement were found to be noisier when compared to the ones produced with rubberized asphalt. To further support this, ADOT and the Federal Highway Administration launched the Quiet Pavement Pilot Program yet in 2003, which gave the organization a chance to test rubberized asphalt on chosen freeway sections and investigate its noise reduction properties. The study found that rubberized asphalt showed high efficiency when a passenger vehicle of an average size drove at high speed. The pilot program is still running, as the organizations want to find the best idea for developing quieter surfaces.

Successful examples of using rubberized asphalt can be found in many countries around the world. Ongoing researches contribute in technology advances and step by step make technology more popular. Tire recycling companies also benefit from it, as contractors require more good-quality material to pave highways.

To find out more about tire recycling and applications for recycled tire rubber, send us your inquiry to robert@weibold.com. We will be happy to help you build a flourishing tire recycling and pyrolysis business!

Links to our previous articles:

  1. Welcome to weibold! Academy
  2. weibold! Academy: Recycled Rubber Output Spectrum and Rubber Granulates
  3. weibold! Academy: Rubber Granulates, Rubber Powder, Tire Derived Steel and Tire Derived Fiber
  4. weibold! Academy: Tyre Recycling Value Chain
  5. weibold! Academy: Applications for Tyre Recycling Plant Output
  6. weibold! Academy: Rubber Granulate Applications
  7. weibold! Academy: Rubber Powder Applications – Rubber Industry
  8. weibold! Academy: Rubber Powder Applications – Surface Coatings
  9. weibold! Academy: Success Factors in the Tire Recycling Industry
  10. weibold! Academy: Understanding Tire Recycling Technology
  11. weibold! Academy: Total Quality Management in Tire Recycling
  12. weibold! Academy: Applications for Fibers from End-of-Life Tires
  13. weibold! Academy: Safety and health effects of crumb rubber infill in artificial turf
  14. weibold! Academy: Tire pyrolysis – products and applications
  15. weibold! Academy: Tire-derived fuel in cement production
  16. weibold! Academy: How to improve tire collection in small cities
  17. weibold! Academy: How to prevent tire fires
  18. weibold! Academy: Recycled tires in railroad construction
  19. weibold! Academy: Basics about tire-derived fuel
  20. weibold! Academy: Waste tires in civil engineering
  21. weibold! Academy: How to create your own sandals from used tires
  22. Weibold Academy: Sustainable rubber powder composites
  23. Weibold Academy: How recycled tires enhance safety of children on playgrounds
  24. Weibold Academy: Recycled tires in footwear manufacturing
  25. Weibold Academy: Advantages and the current state of tire retreading industry